Miscellaneous Valves

Cla-Val 2" Threaded Air and Vacuum Valve

Designed to protect pipelines from air lock and vacuum collapse, the CLA-VAL Model 33ATD Air Release and Vacuum Breaker Valve eliminates air and prevents vacuum formation in pipelines. A large venting orifice and large float clearances freely exhaust or admits air during pipeline filling or draining. 

During normal pipeline operation, air accumulation and buoyancy cause the floats to lower or lift. As the water level lowers inside the valve, small amounts of accumulated air are released through the small orifice. 

Once air is released, the float poppet closes drip tight. Valve servicing is easy because the entire float system can be replaced without removal of the body.

Typical Applications

• Vertical Turbine Pumps
• Split Case Pumps 
• High Points of Piping Design

Cla-Val model number 33ATD

Stock number 20971607F 

1/2", 3/4", and 1"

Air Release Valves, sometimes referred to as "small orifice valves," continually release unwanted air during system operation to protect against unwanted surges and maintain system efficiency.

Cla-Val model number 3410-AR 116.3

Comparable to Val-Matic model number 22.9

for testing of fire sprinkler systems

• 1" FNPT x 1" FNPT Threads
• Forged Brass Body
• Sight Glass for Visual Verification of Water Flow
• 1/2" Orifice for 5.6K Factor
• UL Listed / FM Approved
• Rated for 300 PSI
  

Typically ships in 1-2 days.

for testing of fire sprinkler systems

• 1.25" FNPT x 1.25" FNPT Threads
• Forged Brass Body
• Sight Glass for Visual Verification of Water Flow
• 1/2" Orifice for 5.6K Factor
• UL Listed / FM Approved
• Rated for 300 PSI
  

Typically ships in 1-2 days.